#2B3B99#2B3B99

#2B3B99 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.154 H 270.4°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#2B3B99
RGB	rgb(43, 59, 153)
HSL	hsl(231, 56%, 38%)
HSV	hsv(231, 72%, 60%)
CMYK	cmyk(71.9%, 61.4%, 0%, 40%)
CIE-LAB	lab(29.26, 26.80, -53.31)
CIE-LCH	lch(29.26, 59.67, 296.69°)
OKLab	oklab(40.07% 0.0012 -0.1538)
OKLCH	oklch(40.07% 0.154 270.4)
XYZ	xyz(8.3080, 5.9406, 30.8396)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3B99 #99892B

analogous

#2B7299 #2B3B99 #522B99

triadic

#2B3B99 #992B3B #3B992B

tetradic

#2B3B99 #992B72 #99892B #2B9952

square

#2B3B99 #992B72 #99892B #2B9952

split-complementary

#2B3B99 #99522B #72992B

monochromatic

#101639 #1E2969 #2B3B99 #3A4EC8 #6979D5

Accessibility & contrast

On white

9.60

#2B3B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2B3B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3B99

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3B99	#FFFFFF	#000000	##FFFFFF
##2B3B99	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b3b99;
/* rgb */ color: rgb(43, 59, 153);
/* oklch */ color: oklch(40.1% 0.154 270.4);

Tailwind

colors: {
  custom: {
    50: '#7470b8',
    500: '#2b3b99',
    950: '#000000',
  },
}

SCSS

$custom: #2b3b99;
$custom-light: #7470b8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3b99",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 153
  },
  "hsl": {
    "h": 231.273,
    "s": 56.122,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40066,
    "c": 0.15381,
    "h": 270.4
  },
  "luminance": 0.05941
}

Semantic roles & 50–950 ramp

primary

#2B3B99

secondary

#BCAF64

accent

#C948DF

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2B3B99

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →